Company lists · Data refreshed November 2026

Top 25 Thermodynamic heating system installers based in the United States

RevenueBase identified 1,382 company matches for thermodynamic heating system installers associated with the United States as of November 2026 and tracks 8,687 professional contacts across them, including 2,122 with verified work emails. New York is the largest hub.

This list covers company matches for thermodynamic heating system installers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,382Companies
8,687Contacts tracked
2,122Verified emails
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The 25 largest thermodynamic heating system installers based in the United States

Ranked by team size
Top 25 of 1,382 company matches for thermodynamic heating system installers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBurr Ridge, NC, United StatesHQ recorded Nov 6, 2026501-1,000299 contacts →

Exact match

“Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPulaski, NY, United StatesHQ recorded Nov 6, 2026501-1,000177 contacts →

Exact match

“Fulton specializes in custom engineered industrial and commercial heating systems featuring steam boilers, hot water and hydronic boilers, thermal fluid heaters, and a full range…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBennettsville, SC, United StatesHQ recorded Nov 6, 2026201-500169 contacts →

Exact match

“Marley Engineered Products® draws upon a long history of providing reliable comfort heating and ventilation solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202651-200110 contacts →

Exact match

“Lawyer Mechanical Services (LMS) creates and maintains comfort.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchStratford, CT, United StatesHQ recorded Nov 6, 2026201-50093 contacts →

Exact match

“ENCON Heating & A/C provides engineering, installation, and maintenance of HVAC systems for both commercial and custom residential applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWinter Park, FL, United StatesHQ recorded Nov 6, 2026501-1,00093 contacts →

Exact match

“One Stop Cooling & Heating has been providing exceptional installations and service for 26 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRound Rock, TX, United StatesHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“CASA Mechanical is owned and operated by the W.G.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHam Lake, MN, United StatesHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Creating Custom Comfort since 1985!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNew Bedford, MA, United StatesHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchScotts Valley, CA, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Warmboard, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFarmington Hills, MI, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“We have been setting the standard for professional home service in the Metro Detroit area since 1937.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMurfreesboro, TN, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBoise, ID, United StatesHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Total System Services is a full service air conditioning and heating contractor located in Boise, Idaho that has been serving thousands of satisfied customers in Idaho…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchArnold, MO, United StatesHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“The Unico System is a small-duct, high-velocity central heating and air conditioning system.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLenexa, KS, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“As "The Technicians You Can Trust with Your House Keys!"®, you can expect the best AC and furnace repairs and installations and plumbing along with our award-winning customer…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Specialists in design, installation and service of heating, air conditioning, electrical and plumbing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLake Zurich, IL, United StatesHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“WarmlyYours is a fast-growing firm in Chicago providing radiant heating solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchConcord, CA, United StatesHQ recorded Nov 6, 2026201-50052 contacts →

Exact match

“DESIGN + BUILD Matrix HG is a commercial HVAC company serving the greater San Francisco Bay Area.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchColton, CA, United StatesHQ recorded Nov 6, 2026201-50047 contacts →

Exact match

“Williams Comfort Products designs and manufactures high-performance HVAC solutions, specializing in furnaces, fan coil units, air handlers, and hydronic heating and cooling…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMarlborough, MA, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Endless Energy is a locally owned energy efficiency and HVAC company with over 40 years of service to our community.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadison, WI, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“Harker Heating & Cooling set out in 1949 to provide our customers with the very best quality heating and cooling services available in Madison, WI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNew Orleans, LA, United StatesHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Steam Solutions keeps commercial and industrial facilities operating at peak performance through its specialized knowledge of steam systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNewton, MA, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Forge makes home comfort simple and sustainable with energy-efficient heat pump installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchOklahoma City, OK, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Since 1918 Federal has been a leading thermal solutions provider in the Midwest.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,382 thermodynamic heating system installers based in the United States

See the full list, filter by size, metro and specialty, and access 2,122 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Thermodynamic heating system installers based in the United States at a glance

As of Nov 6, 2026
24.4%Verified-email coverage
6.3Average contacts per company
1-10Median size (employees)
1.1%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
712
11-50
547
51-200
87
201-500
8
501-1,000
4
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,382 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “thermodynamic heating system installers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 2,122 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “thermodynamic heating system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many thermodynamic heating system installers are there based in the United States?

RevenueBase identified 1,382 company matches for thermodynamic heating system installers associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Weil-Mclain tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most thermodynamic heating system installers?

New York leads with 15 company records, followed by Houston (14) and Chicago (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,122 professional contacts with verified work emails tracked across these 1,382 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.